it's not write-specific. you can see below that you're somehow
managing to trigger roughly two interrupts per *either* bi or bo.
for a normal IDE setup, you should see one interrupt per 16-64K
under average use. it's almost like your sys somehow thinks
that it can only transfer 1 sector per interrupt!
> everytime i experience a slowdown, there's a 'big' number in the io (bo)
> column.
no, it's basically in=2*(bi+bo), as if your system somehow believes
it can only do a single sector per interrupt (PIO and -m1 perhaps?)
it should be more like 32K per interrupt.
> Jun 27 22:52:31 charlus kernel: Found and enabled local APIC!
have you tried without that?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/